sfx2/source/control/querystatus.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <sfx2/querystatus.hxx>
  21 #include <svl/poolitem.hxx>
  22 #include <svl/eitem.hxx>
  23 #include <svl/stritem.hxx>
  24 #include <svl/intitem.hxx>
  25 #include <svl/itemset.hxx>
  26 #include <svtools/itemdel.hxx>
  27 #include <svl/visitem.hxx>
  28 #include <cppuhelper/weak.hxx>
  29 #include <comphelper/processfactory.hxx>
  30 #include <osl/mutex.hxx>
  31 #include <vcl/svapp.hxx>
  32 #include <com/sun/star/util/URLTransformer.hpp>
  33 #include <com/sun/star/util/XURLTransformer.hpp>
  34 #include <com/sun/star/frame/status/ItemStatus.hpp>
  35 #include <com/sun/star/frame/status/ItemState.hpp>
  36 #include <com/sun/star/frame/status/Visibility.hpp>
  37
  38 using namespace ::cppu;
  39 using namespace ::com::sun::star::uno;
  40 using namespace ::com::sun::star::frame;
  41 using namespace ::com::sun::star::frame::status;
  42 using namespace ::com::sun::star::lang;
  43 using namespace ::com::sun::star::util;
  44
  45 class SfxQueryStatus_Impl : public ::com::sun::star::frame::XStatusListener ,
  46                             public ::com::sun::star::lang::XTypeProvider    ,
  47                             public ::cppu::OWeakObject
  48 {
  49     public:
  50         SFX_DECL_XINTERFACE_XTYPEPROVIDER
  51
  52         SfxQueryStatus_Impl( const ::com::sun::star::uno::Reference< ::com::sun::star::frame::XDispatchProvider >& rDispatchProvider, sal_uInt16 nSlotId, const OUString& aCommand );
  53         virtual ~SfxQueryStatus_Impl();
  54
  55         // Query method
  56         SfxItemState QueryState( SfxPoolItem*& pPoolItem );
  57
  58         // XEventListener
  59         virtual void SAL_CALL disposing(const ::com::sun::star::lang::EventObject& Source) throw( ::com::sun::star::uno::RuntimeException );
  60
  61         // XStatusListener
  62         virtual void SAL_CALL statusChanged(const ::com::sun::star::frame::FeatureStateEvent& Event) throw( ::com::sun::star::uno::RuntimeException );
  63
  64     private:
  65         SfxQueryStatus_Impl( const SfxQueryStatus& );
  66         SfxQueryStatus_Impl();
  67         SfxQueryStatus_Impl& operator=( const SfxQueryStatus& );
  68
  69         sal_Bool                                                                   m_bQueryInProgress;
  70         SfxItemState                                                               m_eState;
  71         SfxPoolItem*                                                               m_pItem;
  72         sal_uInt16                                                                     m_nSlotID;
  73         osl::Condition                                                             m_aCondition;
  74         ::com::sun::star::util::URL                                                m_aCommand;
  75         com::sun::star::uno::Reference< com::sun::star::frame::XDispatch >         m_xDispatch;
  76 };
  77
  78 SFX_IMPL_XINTERFACE_2( SfxQueryStatus_Impl, OWeakObject, ::com::sun::star::frame::XStatusListener, ::com::sun::star::lang::XEventListener )
  79 SFX_IMPL_XTYPEPROVIDER_2( SfxQueryStatus_Impl, ::com::sun::star::frame::XStatusListener, ::com::sun::star::lang::XEventListener )
  80
  81 SfxQueryStatus_Impl::SfxQueryStatus_Impl( const Reference< XDispatchProvider >& rDispatchProvider, sal_uInt16 nSlotId, const OUString& rCommand ) :
  82     cppu::OWeakObject(),
  83     m_bQueryInProgress( sal_False ),
  84     m_eState( SFX_ITEM_DISABLED ),
  85     m_pItem( 0 ),
  86     m_nSlotID( nSlotId )
  87 {
  88     m_aCommand.Complete = rCommand;
  89     Reference< XURLTransformer > xTrans( URLTransformer::create( ::comphelper::getProcessComponentContext() ) );
  90     xTrans->parseStrict( m_aCommand );
  91     if ( rDispatchProvider.is() )
  92         m_xDispatch = rDispatchProvider->queryDispatch( m_aCommand, OUString(), 0 );
  93     m_aCondition.reset();
  94 }
  95
  96 SfxQueryStatus_Impl::~SfxQueryStatus_Impl()
  97 {
  98 }
  99
 100 void SAL_CALL SfxQueryStatus_Impl::disposing( const EventObject& )
 101 throw( RuntimeException )
 102 {
 103     SolarMutexGuard aGuard;
 104     m_xDispatch.clear();
 105 }
 106
 107 void SAL_CALL SfxQueryStatus_Impl::statusChanged( const FeatureStateEvent& rEvent)
 108 throw( RuntimeException )
 109 {
 110     SolarMutexGuard aGuard;
 111
 112     m_pItem  = NULL;
 113     m_eState = SFX_ITEM_DISABLED;
 114
 115     if ( rEvent.IsEnabled )
 116     {
 117         m_eState = SFX_ITEM_AVAILABLE;
 118         ::com::sun::star::uno::Type pType = rEvent.State.getValueType();
 119
 120         if ( pType == ::getBooleanCppuType() )
 121         {
 122             sal_Bool bTemp = false;
 123             rEvent.State >>= bTemp ;
 124             m_pItem = new SfxBoolItem( m_nSlotID, bTemp );
 125         }
 126         else if ( pType == ::getCppuType((const sal_uInt16*)0) )
 127         {
 128             sal_uInt16 nTemp = 0;
 129             rEvent.State >>= nTemp ;
 130             m_pItem = new SfxUInt16Item( m_nSlotID, nTemp );
 131         }
 132         else if ( pType == ::getCppuType((const sal_uInt32*)0) )
 133         {
 134             sal_uInt32 nTemp = 0;
 135             rEvent.State >>= nTemp ;
 136             m_pItem = new SfxUInt32Item( m_nSlotID, nTemp );
 137         }
 138         else if ( pType == ::getCppuType((const OUString*)0) )
 139         {
 140             OUString sTemp ;
 141             rEvent.State >>= sTemp ;
 142             m_pItem = new SfxStringItem( m_nSlotID, sTemp );
 143         }
 144         else if ( pType == ::getCppuType((const ::com::sun::star::frame::status::ItemStatus*)0) )
 145         {
 146             ItemStatus aItemStatus;
 147             rEvent.State >>= aItemStatus;
 148             m_eState = aItemStatus.State;
 149             m_pItem = new SfxVoidItem( m_nSlotID );
 150         }
 151         else if ( pType == ::getCppuType((const ::com::sun::star::frame::status::Visibility*)0) )
 152         {
 153             Visibility aVisibilityStatus;
 154             rEvent.State >>= aVisibilityStatus;
 155             m_pItem = new SfxVisibilityItem( m_nSlotID, aVisibilityStatus.bVisible );
 156         }
 157         else
 158         {
 159             m_eState = SFX_ITEM_UNKNOWN;
 160             m_pItem  = new SfxVoidItem( m_nSlotID );
 161         }
 162     }
 163
 164     if ( m_pItem )
 165         DeleteItemOnIdle( m_pItem );
 166
 167     try
 168     {
 169         m_aCondition.set();
 170         m_xDispatch->removeStatusListener( Reference< XStatusListener >( static_cast< cppu::OWeakObject* >( this ), UNO_QUERY ),
 171                                            m_aCommand );
 172     }
 173     catch ( Exception& )
 174     {
 175     }
 176 }
 177
 178 // Query method
 179 SfxItemState SfxQueryStatus_Impl::QueryState( SfxPoolItem*& rpPoolItem )
 180 {
 181     SolarMutexGuard aGuard;
 182     if ( !m_bQueryInProgress )
 183     {
 184         m_pItem  = NULL;
 185         m_eState = SFX_ITEM_DISABLED;
 186
 187         if ( m_xDispatch.is() )
 188         {
 189             try
 190             {
 191                 m_aCondition.reset();
 192                 m_bQueryInProgress = sal_True;
 193                 m_xDispatch->addStatusListener( Reference< XStatusListener >( static_cast< cppu::OWeakObject* >( this ), UNO_QUERY ),
 194                                                 m_aCommand );
 195             }
 196             catch ( Exception& )
 197             {
 198                 m_aCondition.set();
 199             }
 200         }
 201         else
 202             m_aCondition.set();
 203     }
 204
 205     m_aCondition.wait();
 206
 207     m_bQueryInProgress = sal_False;
 208     rpPoolItem = m_pItem;
 209     return m_eState;
 210 }
 211
 212 //*************************************************************************
 213
 214 SfxQueryStatus::SfxQueryStatus( const Reference< XDispatchProvider >& rDispatchProvider, sal_uInt16 nSlotId, const OUString& rCommand )
 215 {
 216     m_pSfxQueryStatusImpl = new SfxQueryStatus_Impl( rDispatchProvider, nSlotId, rCommand );
 217     m_xStatusListener     = Reference< XStatusListener >(
 218                                 static_cast< cppu::OWeakObject* >( m_pSfxQueryStatusImpl ),
 219                                 UNO_QUERY );
 220 }
 221
 222 SfxQueryStatus::~SfxQueryStatus()
 223 {
 224 }
 225
 226 SfxItemState SfxQueryStatus::QueryState( SfxPoolItem*& rpPoolItem )
 227 {
 228     SolarMutexGuard aGuard;
 229     return m_pSfxQueryStatusImpl->QueryState( rpPoolItem );
 230 }
 231
 232 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */